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The volume of aggregate in self-compacted concrete is
- a)50 to 60%
- b)40 to 50%
- c)60 to 70%
- d)30 to 40%
Correct answer is option 'A'. Can you explain this answer?
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The volume of aggregate in self-compacted concrete isa)50 to 60%b)40 ...
Indicative proportions of materials are shown below for self-compatible concrete:
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- The water/powder ratio by volume is to be 0.80 to 1.00
- Total powder content to be 160 to 240 liters (400-600 kg) per m3
- The sand content may be more than 38% of the mortar volume.
- Coarse aggregate content should normally be 28 to 35% volume of the mix.
- The water/cement ratio is selected based on the strength required. In any case, water content should not exceed 200 liters/m3.
- The volume of aggregates in total would form 50 to 60% of the volume of concrete.
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The volume of aggregate in self-compacted concrete isa)50 to 60%b)40 ...
Explanation:
Volume of Aggregate in Self-Compacted Concrete:
- In self-compacted concrete (SCC), the volume of aggregate typically ranges from 50 to 60% of the total volume of the concrete mix.
- This high volume of aggregate helps in achieving the desired flowability and self-compacting properties of the concrete mix.
- The aggregate used in SCC is usually a combination of coarse and fine aggregates that are well-graded to ensure proper distribution and packing within the mix.
- The presence of a higher volume of aggregate also helps in reducing the amount of cement paste needed in the mix, which can improve the overall strength and durability of the concrete.
- It is essential to carefully proportion the amount of aggregate in SCC to ensure that the mix maintains its self-compacting properties while still meeting the required strength and durability criteria.
Overall, the volume of aggregate in self-compacted concrete plays a crucial role in determining the flowability, strength, and durability of the mix, making it a key factor in the successful production of high-quality SCC.
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The volume of aggregate in self-compacted concrete isa)50 to 60%b)40 to 50%c)60 to 70%d)30 to 40%Correct answer is option 'A'. Can you explain this answer?
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